<template>
  <div>
    <div class="todo-footer">
      <label>
        <input type="checkbox" :checked="allChange" @click="allChecked"/>
      </label>
      <span>
        <span>已完成{{ changeDone }}</span> / 全部{{ todoList.length }}
      </span>
      <button class="btn btn-danger" @click="deleteAllDone">
        清除已完成任务
      </button>
    </div>
  </div>
</template>

<script>
export default {
  name: "Footer",
  props: ["deleteAllDone", "todoList", "changeDone","allChecked"],

  computed: {
    allChange() {
      return (
        this.todoList.every((item) => item.done) && this.todoList.length !== 0
      );
    },
  },
};
</script>

<style lang="css" scoped>
/*footer*/
.todo-footer {
  height: 40px;
  line-height: 40px;
  padding-left: 6px;
  margin-top: 5px;
}

.todo-footer label {
  display: inline-block;
  margin-right: 20px;
  cursor: pointer;
}

.todo-footer label input {
  position: relative;
  top: -1px;
  vertical-align: middle;
  margin-right: 5px;
}

.todo-footer button {
  float: right;
  margin-top: 5px;
}
</style>